Type-writing machine or other similar instrument.



No. 777,652. i-ATENTED DEC, 15 1904.

' T. CAHILL.

TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

APPLIUATION FILED r312. 28, 1901. 1:0 MODEL. 1o SHEETS-SHEET 11N0.7'77,652. 7 PATENTED DEC. 13, 1904.

T. GAHILL.

TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

, AEPLIGATION FILED r1712. 23, 1901.

.1310 MODEL.

10 SHEETSr-BHBBT 2.

No. 777,652. PATENTS!) BBQ. 13, 190%.

T. OAHILL. TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

APYLIUATION TILED FEB. 28, 1901. N0 MODEL. 10 SHBBTS SHBBT B,

zwmzw No. 777,552. PATBNTBD DEG. 13, 1904. T. GAHILL TYPE WRITINGMACHINE OR OTHER SIMILAR, INSTRUMENT, APPLIQATIOH PILEDTIZB. 28, 1901.

H0 MODEL. 10 SHEETS-BEEET 4.

M. 1% 3!? 3m 31/ I30 No. 777,652. PATBNTED DEC. 13, 1904. T. GAHILL.TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

APPLIGATIOH FILED FEB. 28,1901.

..N0 MODEL. 10 SHEETS-SHEET 5.

PATENTED DEC) 13, 1904.

T. GAHILL. TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

APPLICATION FILED FEB. 28, 1901.

N0 MODEL No. 777,652. EATENTED D130. 13, 1904. T. CAHILL, TYPE WRITINGMACHINE OR OTHER SIMHQAR INSTRUMENT.

APPLIOAL'IOH FILED arms. 28, 19011 1m 110.0151! No. 777.652. PATENTEDDEC. 13, 1904.. T. UAHILL. TYPE WRITING MACHINE OR OTHER SIMILARINSTRUMENT.

APPLICATION FILED FEB. 28. 1901.

NO MODEL; 10 SHEETS--SHEET 8.

No. 777,652 PATENTED 1930.. 13, 1904..

T. GAHILL. TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

I APPLICATION FILED FEB. 28, 1901.

NO MODEL. 10 SHEETS-SHEET 9 f-zugy'jfit 266 f 0 we 2 O No. 777,602.PATENTED DEC. 13, 1904.

T. OAHILL. TYPE WRITING MACHINE OR OTHER SIMILAR INSTRUMENT.

APPLIGATION FILED FEB. 28, 1901. N0 MODEL.

10 sannfs-snnm 1a.

lvo. 277,652.

Patented December 13, 1904.

THADDEUS CAHILL. OF New YORK, N

TYPE- -WRlTING MACHINE o oTHEn simiLAR INSTRUMENT.

sens-intonation forming part of Letters Patent No. 777.652, datedIii.ece mioer 13, 1,904

Application filed February 23,1 01. Seria]No.4:9,Zll6-lNcmodelJ To allwhorrt it may concern:

Be it known that I, THADDEUS (JAHILL, a citizen of the United States,and a resident of the city, county, and State of New York, (tempo'rarily residing at Washington, in the District v of Columbia) haveinvented certain new and Lnseful Improvements? in Type Writing Machinesor other Similar 1nstruments, of which the following is a specification.

The object of my invention is to make an improved type-writing machine;and my invention consists in the parts, improvements, and combinationshereinafterdescribed, and

' specificallyset forth in the statement of claims at the end hereof.

The mechanism illustrated in the accompanying drawings resembles in manyparticulars that illustrated in Letters Patent of the United States tome,

tratedby the accompanying drawings and l which are specificallysettorthin the stato a plan view of the machine.

ment of claims at the end hereof. To render the Whole more clear,however, I shall 'de Fig. 7 is a side elevation. Fig. 8 is a detailplan'vievwof the center ring or fulcrum-ring with thecap-ring in place,a portion of said cap-ring being broken away to show the milled slots infulcrum-ring and the annular-wire upon which the radial levers arefnlcrumed. Fig. 9 is a. sectional View. on

spring v ,Fi'g-I ll is anelevation otthe same.

Fig. 1269 an. elevationofthe pin-carrier axle.

- Fig. lads-1a plan view of-thefulcrum-ring,

showing the-radial levers in position, the cap-- ring being removed.iFig. 14 is a plan view No. 657,478, dated September" 1;,1900; but thereare substantial improve- "ments in detail embodied in the structureillns' screws.

corresponds to one of the type-bars 6 6 and Fig. 5 is a transversesection on the line 5 5 oi Fig. 1. i Fig. 6 1s a rear elevation.

the line .9 9,}Fig. 8." 'Fig.1,0 is a plan view of the pin-carrier withits link and returning of the group-controlling levers. Fig.15is adetail side elevation of 'theisania-and Fig. 16 is a diagrammaticviewflillnstrating the arrangement of the electric circuit. p

Similar reference-numerals refer to similar parts in all the drawings. a

Of the main f/mm'. Fhe main frame consists, essentially, of (a) abod-plate2t0,(b) a ,top plate 2&1, (c) a center-ti ing or fulcrum" ring243, (d) side stani'larr-ls242 2&2, bolted to the bed-plate andservingto support the ,fulcrum-ring'2a3, the group 'controlling le.

vers, the bell-crank levers, rthe inotoi t'rame, the circuit-closingtramegthe releasmgl'rame, the pin-carrier-drivrnghframe, and variousother parts hereinafter described. and (a) four columns 24:4 244 2424.4, that'rise from the fulcrum-ring 243 to support the top plate 241.Oft/w tylwbars and tlwmwcmsfor controlling thcm.;-6 6. Figs 2 andb, "arethe types PfFr- NT- bars, fnlcrnmed' by means of hangers? 7,

screwed fast to the hanQer-ringtl; 250 250 are the radial levers, whichare set in milled slots 251 251 inthe-fnlcrmn ring 243 and arefulcrumedby means of a circular or segmental wire 252, held in place bymeans of acap-ring 253, which'has slots milled in it to correspond withthe slots inthefn'lcrumring 243, to which it is attached by suitableEach of the radial levers 250 250 is connected with the short armofsuch-typebar by means of a connecting n'ut 64, and link 65. y

Underneath the inner ends of the radial levers 250 250 are thepins25a,*(o'ne"pin to every four radial levers asthe machine illustrated inthe drawings isconstruoted, though the number of radial "levers inagroup and controlled bya singlepin may of course be altered, ifdesired,) mounted inthe oscillating pin carrier 255 and held in theirnormal posi tio ns.(;shown in'Figs. 2, 5 and =11 by liglit expansivesprings 25 6256, which bear upon collars 257 257, attached tothe pins254254,

pressing said collars down on the lower disk of the pin-carrier 255:Eaclrofthe pins'254 254 serves to give movement to the-different radiallovers of the group controlled ibyiato -each rad'ial lever asfcQuired,the pi'wmrrrioi' movementreceiving arms.

pin-carrier'maybe oscillated or vibrated within the limits ofit's'm'oivement each of. the I 5- pins 254 254 always lies over thecorresponding'group controlling lever 264.

v Movement-receiving arms 266266 are pivoted to the group-controllinglevers 264 264.

' oscillating frame 270 underlies the said Said frame is mounted bymeans of the arm 271 of the rock- -shaft 272 and thebridle-lever 273, toboth o'f' whichit is pin-jointed. To the other arm, 274,

.- whichis bolted to the bottom of the bed-plate 240)lie within anon-'ferruginou's tribe -1 4, u pon which the energizingrcoil 1-5 iswound. The

j 0. magnetthus-formed serves when energized to yrve' gmoyernenttotheoscillatingframe 270- ,aforesaid, and-thereby to whateverone'of ther'groupcontrolli ng'levers 264 264 that'may have its movement-receivingarm266 266 overlying 5 said frame-'- "A movement-receiving armj267,hinged to one ofjthe group-controlling levers- 264, normallyo-verliesthe motor-.frame'fl27Q',

' while'all the other movemen t-recei'vingarms 266lie normally out ofthe pathof movefi (Logii ent of saidframe."

' have seen-l that eachthe groii p conr trolling levers 264 264, withthejcorresponde ing pin 254, controlsa diflerentigroup of the- .radiallevers 250 and the'type-barsfi 6. The

question, then, of what type-bar shall be impelled'wh'en theoscillating'frame .270, strikes updepends 'upon (a) what oneof thegroupcontrollinglevet's264 264 has its movement- I receiving armiii'the-path of movement of the motorframe 270 and (Zlwhat position, the

oscillating pin-barrier. 255 occupies, whether its normal position orsome one of' the positions into Which'it'is moved, respectively, by

; ,the depressing of the keys 280 281 282. j 5' To control the ninemovementreceiving; arms 266 266 and the group-controlling levers 264264,with which they are connected, there arenine keys 283 283, eachofwhich serves; as we-shall soon see, when depressed to swingthemovement-receiving arm 266, conn-ected with the group-controll'inglever264 that corresponds tosuch ke v, over the reciprocating;

frame, 276-,to receivemovcment therefrom,

7 fund the three keys 280281 282 serve to oscila. late or vibrate thepin-carrier 255 into the difl'erent ositionsreqniredto connect each ofthe group-controlling levers 264 264 aforesaid with the'diflerent:radial levers'250 250 of the group to which it corresponds.

0f the keyboard. -;-Let us now consider the 7 arrangement of the keysand the parts which they actuate. As" to the arrangement of v thekeys,;(see partieu'lary Fig. 1,) the keys 280 281 282, controlling thepin-carrier 255, are

designed to be operated ordinarily and propv .erly by the thumb, whilethe nine keysj28-3 283, corresponding to and controlling the differentgroup-controlling levers 264 264, are designedto be regularly andproperly operated by the fingers, excluding the thumb. The space-key 284is designed to be operated by the ring-finger, which also operates oneof the keys 283.

Overlying the keys 280 281 282 283 283 283 andthe' space-key 284 is aset of key corre y sponding "key-actuated levers (which for' 5 greaterconvenience and to distinguish them I from the key-levers we shallsometimes here: I inafter term key actuated levers or keypftherock-shaft272-the armature 13 is'con- .2 5? nectedt Said armature-13 andv the core11 (which "is attachedito the soft-iron plate 12, I

iwhich isv set'in: the support292 292; "Said corresponding levers) 285,286, and 287, 288

288 288, and 290. These levers are ful- 90. I

crumed ii -front by means of the rod 291,

support Torarm is milled to'receive thekeyactuated, levers aforesaidandalsoto receive 7 the normal frame 268.] It serves alsoasa stop 9 5"to li'rnit; the upward movement-of theikey's,

and "it is atta'ch'ed by screws 293 293 to lugs Q 294294,- tha-t'risefrom the bed plate; -To the rear'end of each of the key actuated levers28.5,

286,287,288'288 288mm! 2901a hing d are 160. leasing arm orlatch44;.Whicli is held byaconftractile'spring 146,. normally in contact witha a steel extension '43, attached to the rear end of the corresponding.key-lever." (See 'Eig, 2.)

The-latches 44 aforesaid serve each tofco'nnect 1o 5 thev-keyactuatedleverto-which it is pivoted to the correspondingkeyglever,'(280, 281, 282," 283,, or 284,) so that when'said. key-lever 'isde-'pressedin; front by the operator'it rises back of-the fulcrum andlifts-the corresponding m key-actuated lever'throu'gh" the latch144; I butas the type-bar moves. under the influence of the motor magnet"IO-afofresaid toward the printing-point thereleasing frame 30-(1which .iscentered at269 and connectedibyf a link 31 p I 5 with the arm 27-5 ofthe-rock-shaft 272 Figs.v 4, 5, and 7) strikes the -latchl44,moving-itofi the extension 3, connected-with the cone-'1 spendingkey-leverand allowing all the parts to returnto their normalposition'simmedi- I ately and before'the operator has released the,key-lever. '1 Bell-cranks ..-277 277 ,-fulcrumed by means of the rods278' 278' and'set in milled slots in the'standards' 242 242Qand havingtheir hori-I I2 5 'zontal arms overlying-the key-actuated levers 288.288 288 (each qfwhich isfurIIisIiedwith a-projection"289,} rising above.it to act upon Ithecorresponding-bell crank 277) and havingtheirverticala'rms connected by links 3 AA4AAA A. 4114 4.4-4 4 41inovernenurece vi "rrmta A? 9 2179 with the moveinenlkreceiririg arms 2%266, serve to connect-the keyhctuatcd levers 288 288 28%) with theHIOVEBIllGDiHGCOlV-- ing arms E266 E266, pivoted to the correspond inggroup-controlling levers 9264i; 5264:, so that each of the keys 283 283when deprcseed lifts, through the latch 4,4, the correspondingkoyactuated'lever 288-,hvhichserves (a) toswing, through its bell-crank277 and link 2Y9, the

over the. oscillating motorfraine 270 to renerve moveinenflthercfrorng(/1) to hit the nor-- mal traine'2r'i8 ,-which is centered upon the samerod 291 which eervesas a fulcrum for the levers 2%, 287, 288 288 E288,and 290 and which aete'un one of the hell-cranks 2T? aforesaiifl andthrough said bella: rank and the linlgiZZQ, connected therewith, swingsthe normal niovernent-receiving' arrnQtW oil" from over the motor-framei270, and (c) to lift the c1rcu1t-clos1ng frame'E JO, centered atQl, and

havinn' an arin 22,011 111 'in the battery-con-L ncct'ed screw 24;,furnished with a platinum point to make contact with a similar platinumpoint in the spring 2-6, (see Bugs; (5 and 16,)

hi5 overlies it and to the grrm rcontrolling lever 26%, to whichsaid"moveinent-receiving arrn is pivoted, and to the pin overlyinggroup'eontrolliugzlever. idaid pin in turn gives :nmrerneut to whateverone 011 the radial levers 250 250 it underlies, and the radial lcverthus moved gives movement through the link '85 to thecorrespondingtype-bar 6,

- throwing tl' e type carried thereby toward the printingcenter, so thatit prints, at the type-ban? approaches the printing-point thereleaemgr-frame '30 (centered at Flljfland coir nected by all link 31with the. arm. 275 of the maguetactuated rpcloshaft 272) strikes the latchdi, moving it oil of the end piece as, at- .tar'hedfiio thecorrespmuhng" key-h nor, and 'eupon, the key-actuated lever returns to 7itsnormal-position,releasing the various parts controlled by it andamong others releasing 5 the circuit-closing frame 20, which returningto its normal position brcakh the circuit of the j magnetaforesaid,whcrcupon the armatiu-e 13, with the oscillating 'l'rame QZO,return to theirnormal positions under thiinll uence elf the cou--tractile spring 276,1'elcasing the movement-row ceiving 2111x1266,group-controlling lever 264;,

pin are, radiallcver 250, and typo-bar 6, all

of which iuuuediately return to their normal positions, being assistedthereto by suitable. springs, some of which are omitted from the "lhereturnot' all the parts to their? sin'iultancously with one of thethumb-keys,

- ng arm 1-66, connected with the correspondinggroup-e-ontroihng lever2-64,,

magnetized, attracts the arma--- depress another key or keys to'printanother letter without havingto wait to release the key or keys lirstdepressed.

Each or the key-levers-283 283 283 (which from the fact that they aredesigned to be normally and regularly operated by the fingers of thehand as distinguished from the thumb we may prcmerlg term linger-keys orfingerkey levers) serves when depressed to cause some one of thetypebars of the group corresponding to Hate be actuated by themotorframe 270, and ii. no one of the keys 280 281 282 (whichfl'OIItllllG fact that thcvare' designed to be normally andregularlyoperated by the thumb we may call thumb-keys or thumbkeylevers) at the same timedepressed that oneo'l the type-bars oi the groupis actuated whose radial lever 250 overlies the corresponding pinflfrlwhen the pin-carrier is in its normal position, with the step 258,attached to it, held in contact with the step 259 of the support .260 bythe contractilespring 261. The keys 280, 5381, and 282 serve toescillate the pin-carrier and thercby to control what one of the typebars of a group shall be actuated. For this purpose a pin-carrierdriving frame is used, consisting oi (a) a roclc shaft 300, (/1) threedriving-arms 301 302 303,

upon which the keys 280281282, respectively,

act through the latches 44: A; 44, levers 285,

286, and i287, and'push-pieces 304: 304, (c) a connecting-arm 305,connected by the link 306 with" the pin-carrier 255,,it11d (1]) astop-arm 307, carrying S(':1CWSI3O S 30S, (adjustable by means 0lo'ck-nuts,) which strike the steps 309 30%), Figs, 2, 3, and 6,attached to the rear ends of the law-actuated levers 2-85 286. Each oithepius 254 254, it will be observed, controls a group of tour ot' theradial levers 250 250 and type-bars 6 (5. Each pin, as be fore said,

in all its different positions overlies the corrcspending group'controlling lever 264. Each pin normally undm'lies the first radiallever 250 of the group oi? radial levers controlled by it, audit isoscillated to underlie thesecond, third, and fourth radial lovers of itsgroup, respectively, by depressing the keys S280, 281, and 5.2852.rcspcctively.- When the connection bet-union the tluunh-kcy 280, 281, or282 is de- 'iresscd and the cm'responding ke vactuated lever L85, G, or287 is temporarily broken by the luotor impellcd releasing-frame 30acting upon the latch 44, corrcspondingto the key depressed to free saidlatch, the pin-can riei' lohand the parts connected therewith arereturned by the contrzuztile spring 261to their normal positions, withthe stop .258, carried by the pin-carrier 255,1osting against tl utop259 01 the supportQhO. p The pin-carrier is mounted upon an axle 262,set in the cap-ring 253, on which axle it.

held by the collar E263 and a set-screw. /i'hcn one of the finger-keysis depressed it is important that the thurnbdrey which 0s eillates thepin-carrier 255 should throw said pin-carrier intothe required positionbefore the circuit of the motor-magnet 10 is closed, for if the circuitof said magnetbe closed be- 5 fore the pin-carrier has assumed theproper position a wrong letter is liable to be printed or otherdifficulties to result. To prevent, then, the premature closing of thecircuit, means are provided which act in such manner that'the circuitcannot be closed while a thumb-key is being depressed or at least cannotbe closed until the thumb-key whichis being depressed approaches thelimit of its depression. These means consist of (a) a contact-screw 310,carried by the arm 307 of the pin-carrier-driving rock-shaft 300, Figs;2 and 16, and normally making co tact with the contact-spring 311 (whichis adjustable by the screw 312) when the pin-carrier occupies its normalposition, but breaking'contact with said spring 311 so soon as saidpin-carrier moves from its normal position, and (b) a thumb key operatedcircuit controlling frame having a sleeve 313 journaled on the 2 5 shaftof the circuit-closing frame 20, with forward-extending arms 31% and afront part 315 overlying thethumb-key-operated levers 285, 286, and 287,so as to be operated by said levers, and having slots 316 316, Figs. o"5'and 6,cut into it overlying those of the levers 288 288, which but forsuch slots would operate said frame 318, insulated from said arm,adjustable bya 3 5 iock-nut and having a platinum point which when anyof the keys 280 281 282 is depressed makes contact as such keyapproaches the limit of its depression with another platinum point inthe contact-spring 319. The effect 40 of this arrangement, it, will beobserved, is

.suchthat the circuitclosing frame 20 cannot complete the circuit whilethe pin-carrier is taking position, but completes the circuit if thepin-carrier is being positioned only after it has reached the properposition. Thus the difliculties which I have found woulld otherwisesometimes arise from closing the circuit before the pin-carrier hadfully reached its position are entirely avoided.

Let us now follow the path of the current with reference to thediagrammatic view Fig.

16. 236 is the battery or other source of elect';icity from which we maysuppose the current flows to the pivot 221 of the switch 220 i 1 andthence, if said switch be closed, to the contact-point 223, thence tothe pivot T1 of the rheostat-arm 70, from which it flows to thedifferent sections of the rheostat according to the 1 position of thehandle 72 and arm 70, whether v6O said arm makes contact with one oranothenof the contact-points 73,v and from said rheostat Said frame hasalso a de-- pending arm 317, carrying a contact-screw.

the current flows, if the pin-carrier 255 be inits normal position, tothe spring 311, and thence to the contact-screw 310 in the arm 307,which i to the contact-screw 2- carried by and insulated from the arm 22of the circuit-closing frame 20, and from said screw 24 (if thecircuit-closing .frame 20 be oscillated from its normal position by thedepressing of a key) to the contact-spring 26, and from saidcontact-spring 26 to and through the convolutions of the coil 15 of themotor-magnet 10, and thence back to the negative pole of the battery236; but if any of the thumb-keys be ,depressed the connection betweenthe screw 310 and the contact-spring 311 is at once broken, so that thecurrent instead of flowing'by the path before described from therheostat to the contact-screw 24 flows from said rheostat to the screw318, carried by and insulated from the arm 317 of the,thumb-key-operated circuit-controlling frame, and thence to the spring319, with which the screw 318 makes connection as the thumb-key which isbeing depressed reaches the limit of its movement,

and from said spring 319 to the contact-screw. 24. carried by thecircuit-closing frame 20,

and thence to the contact-spring 26 and back through the coil 15 to thenegative pole of' the battery or other generator 236'.

7 By means of the switch 220 it will be observed the machine can beconnected with or disconnected from the battery 236 or other source of curreDiL Byme ans of th-e'rheostat illustrated in connected with theshort arm of the shifting lever 120, so that said key when depressedshifts the platen from its lower-ease to its upper-easeposition. Acontractile spring 327 16 the resistance of the circuit can be va}serves to hold the shift-lever in its nprmal position and to return saidshift-lever and platen to their normal positions when the shift-key 320is released. (See Fig. 2.) v yBy the phrase motor-action-preventingdevice used in this specification I mean a device for preventing themotor from acting-,1 By the phrase electromagnetlc-meehamsmaction-preventing device used in' this speci" iication I mean a devicefor preventing electromagnetic mechanismfrom acting, and by the phrasemagnetaction preventing device used in this speeificationl mean a devicefor preventing an electromagnetfrom acting.

What I claim as my invention, and desire to secure by Letters Patent, is

5 normally makes contact with the said spring 1 1. in combination in atype-writing ma- 3 chine, (a) type-bars, striking to a commonprinting-center; (Z2) levers equal mnumber to said type-bars, andconnected each with the responding levers controlled i'especti-vely bythem; (a) a shifter, whereby said movementtransmitting members areshifted as a set, each .5 intermediate thecorrespondinggroup-controlling device and the type-bar-correspondinglevers operated by saidgroup-controlling device; (f) motor mechanism forgiving move ment tolthe group-controlling devices aforesaid; (g) keys,corresponding to said groupcontrolling devices; (it) motor controlling-means operated by said keys; (2?) releasable connections, intermediatesaid keys andsaid motor-controlling means; (A?) one or more other 2 5keys at the keyboardfor positioning the shifter aforesaid; (Z) a device,operated by said keys, and acting to\ prevent the motor mechanism fromimpelling a type-bar while the shifter aforesaid is being positioned;(m) releasable connections intermediate said shifter-controlling keysand said motor'action-preventing device{ and (as) means, acting, when ashiftercQntrolling key is depressed, upon. the releasable connectionintermediate said key and the F 3 5 motor action preventing deviceaforesaid,

thereby to permit said motor-action-prevent- 7 ing device to return toits normal position in advance of the release of the key.

2. In combination in a type-writing mao chine, (aitype-bars, striking toa common sprinting-center; (b) levers equal in number to said type-bars,and connected each with the type-bar to which it corresponds; (0) groupcontrollingdevices, each acting to control a 5 different group of thet'ype-barrcorresponding levers and type-bars aforesaid; (ii) movementtransmitting members, corresponding to the group-controlling devicesaforesaid, and acting to communicate movement from saidgroup-controlling devices to the'type-bar-con responding leverscontrolled respectively by them; a shifter, whereby saidmovementtransmitting members are shifted as a set, each intermediate thecorresponding group-con trolling device and the'type-bar-correspond' inglevers operated by said group-controlling device; (f) electromagneticmeans for giving movement to the groupcontrolling devicesaforesaid; (g)keys, correspondmg to said 6 group-controlling devices;(h)circuit-closing means operated by said keys; e3) releasable connectionsintermediate said keysand said circuit-controlling means; (/0). one ormore keys at the keyboard for positioning the shifter aforesaid; (Z)circuit-controlling means operdiiferent group of thetype-har-corresponding ated by said shifter-controlling key or keys, andacting to prevent the electromagnetic mechanism aforesaid from impellinga ty-ps bar while the shifter aforesaid is being DOSl-f tioned; (m)releasable connections intermerli ate said shifter-controlling keys andthe cir-" cuit-controlling means last mentioned: and (a),

means acting, when a shifter-controlling key is depressed, upon thereleasable connection intermediate said key and the electromagneticaction-mechanism-preventing device aforesaid, thereby to permitsaidpreventing device to return to its normal position in advance of therelease of the key. 3.1n combination in atype-writing machine, (a)type-bars, striking to a common 'printing-center; (b) levers equal innumber to said type-bars, and connected each with the type-bar to whichit corresponds; (c)group controlling devices, each acting to control adifferent group of the type-bar-correspondipg levers and ty pe-barsaforesaid; (d) moverhnttransmitting members, corresponding to thegroup-controlling devices aforesaid, and acts ing to communicatemovement. from said group-controlling devices to the type-bar-'corresponding levers controlled respectively by them; (6) a shifter,whereby saidmove-"jj ment-transmitting members are shifted'asa set,each. intermediate the corresponding gi'oupcontrolling devicethe"type-bar corresponding levers operatediby said group,- controlli ngdevice; (f) a motor device commonto a phirality of the group-controllingdevices aforesaid and serving to give movement tothe group-controllingdevices to which it is common,'each group-controlling device asrequired; (g) keys, corresponding to said groupcontrolling devices; (it)means operated by said keys, whereb' said groi1p-controlling devices areconn'ri cted, each as required, with the motor device before men tionedas common to said group-controlling devices; (a) releasable connections,wherethrough said keys act upon the means last mentionedl, each key toconnect the appropri{ ate group controlling device with thecommon motor;'(lt'tdne or more other keys at the key: board forpositioning theshifter aforesaid; (Z) a deviceioperated by said keys, and" acting topreventl the motor aforesaidfrom impelling'a type-bar while the shifteraforesaid is being positioned; (m) releasable connections intermediatesaid shifter-controlling keys and said motor-action-preventing device;arid (21 means, acting, when ashiftencontrolling key ,is depressed, uponthe releasable connection intermediate said key'and the moto'iac-tionpreventing device aforesald, thereby to perout saidmotor-preventing device to return to chine,"(e) type-bars, striking toacommon printing-center; v(b) levers equall it number to its normalposition in advance of the release 'IO corresponding le ers controlledrespectively by them; (6) a shifter, whereby saidmovelment-transmittingjnembers are sh fted as a sjet, each intermediatethe corresponding group controlling device and the type-baricorresponding levers operated by said groupcontrolling device; (f) anelectromagnetcoinmon to a plurality of group-controllingdcvices-aforesaid and serving to give movement to thegroup-controllingdevices to which it is 29 common. eachgroup-controllingdevice as required; (g) keys at the keyboard corresponding to said group controlling devices; (71/) means operated by saidkeys, whereby said group-controlling devices are connected, each asrequired. with the electromagnet before mentioned; (t) releasa'bleconnections, wherethrough said keys actupon the means last mentioned,each key to connect the corresponding group-controlling device with the3 common electromagnet before mentioned; (A)

one or more other keys at the keyboard for positioning the shifteraforesaid; (l) acircuitcontrolling device operated by said keys andserving to prevent the electromagnet af0re-- 3 3 said from impelling atype-bar while the shifter aforesaid is being positioned; (m) releasableconnections intermediate said shiftercontrolling keys and thecircuit-controlling means last mentioned; and (a) means acting,

4 when a shifter-controlling key is depressed, upon the releasableconnection ntermediate .sa'iil key andthe electromagneticaction-mech-{amen-preventing device aforesaid, thereby zcpermit saidaction-preventing dev ce to rea'g fturnto its normal position in advanceof the release of the key. 7 5. In a selecting device for a type-writingmachine, or other similar instrument,the combination with a pin-carrierand keys for positioning said pin-carrier, and a motor device for actingupon one ofthe pins in said pincarrier, offa a device for preventingsaid motor from acting while said pin-carrier is i being positioned;(/1) releasable connections 5 5 intermediate the pin-carrier-controllingkey oikeysaforesaid, and said motoraction-pre, venting device,whercthrough saidkey, when depressed, operates saidinotor-action-preventingdelvice; (0) means acting, when said pin carriercontrolling key l'ias been; de-

pressed, upon the releasable con'ncctic ter; mediate said key and saidmotor-act1oninaeventing device. to permit said motor-actionpreventingdevice to return to itsnornial po- 5. sition in advance of the releaseof the key.

6. In a selecting-device for a type-writing machine, or othersimilarinstrument, the com bination with a pin-carrier and keys forposiintermediate the pin'-carrier controlling'key or keys aforesaid andsaid magnet-action-preventing device, wherethrough said key whendepressed, operatessaid magnet-action-preventing-device; (c) means,acting when said pin carrier controlling key has been depressed, uponthe releasable connection intermediate said key and said magnetaction'pre ventingdevice, to permit said magnet-actionpreventingdevice to return to its normal position in advance of the release of thekey.

'7. In a selecting device for a type-writing machine, or othersimilarinstrument, the combination with a shifting device and a key atthekeyboard for actuating said shifting device, of ((1) a motor; (7/) a'notor action-pres venting device operated by said shifter-controllingkey; (c) a releasable connection, wherethrough said key acts upon saidmotoraction-preventing device; and ((Z) a motor-actuated device,'acting'when said-key is depressed, to free said releasable connection,therebyto permit said motor-action-preventing device to return to itsnormal position in advance of the release of thekey.

8. In a: selecting device for a type-writing machine, or othersiniilarinstrument, the combination with a shifting device. and a key at thekeyboard for actuating-said shifting device, of (rt) a' motor; (/1) amotor-action;preventing device. operated by said shifter-controllingkey; (0) a releasable connection, wlierethrougl'i said key acts uponsaid niotor-action-pi'eventing device; said motor acting when said keyis depressed, to free the releasable connection aforesaid, thereby topermit the motor-actionpreventing device-to return to its normalposition in advance of the release of the key.

9. In a type-writing machine having typebars and keys for operatingthem, thecombination of (a) a ty1' ebarselecting shifter; (b)

a type-bar-operating motor; (a) a device act-v ing, when a key isdepressed, to bring said motor intoaction; ((Z) a device for preventingsaid motor from acting while the type-bar-selecting shifter aforesaid isbeing shifted; and (c) an automatic releasing device, whereby, when akey is depressed, the parts aforesaid are left free to return to theirnormal positions in advance of the release of the key controlling them,so that another key may be depressed to print while the key firstdepressed is still held down.

lna-typeewritingma chine,having type- Vbars striking-1n HQQIL'IITTIQH'printing-center and keys for controlling said type-bars, the combinationwith said keys and type-bars of (a) I go 'rvaesa f a type-ba'r-selectingshifter; (b) a ty :ie'-bai-op-- I erat'ing frame; (0) an electromagnetfor giving movement to said frame; (rile circuit-- controlling deviceacting, when a key is depressed to bring the electromagnet aforesaidinto action to operate the frame aforesaid; (e) a device for preventingsaid electromagnet from operating the frame aforesaid while thetype-bai'selecting shifter aforesaid is be- 'ing shifted; and (f)automatic releasing means whereby, when one or more of the keysaforesaid are depressed to operate the device aforesaid for bringing theelectroniagnet aforesaid into action to operate the iranie aforesaid andthe device before mentioned for preventing said magnet from operatingsaid lirame, While the type-bar-selecting shifter,

aforesaid is being positioned, said two do vices last mentioned arepermitted to return to their normal positions in advance of the releaseof the key or keys controlling them,

so that another key may be depressed to print while the key firstdepressed is still held down. Y 11. In atype-writingmachine, havingtypebars striking to a common printing-center and keys for controllingsaidtypedaars, the com-- bination with said keys and type-bars of (a) atype-bar-selecting shifter; (7)) a type-baroperating frame; (a) anelectromagnet t'o'r giving movement to said frame; (d) a circuit-closingdevice acting, when a key is depressed, to close the circuit of theelectromagnet aforesaid, so that itoperates the frame aforesaid; (6)another circuit-controlling device normally closing a break in thecircuit of the electromagnet aforesaid, but serving to open such breakwhile the shifter aforesaid is being shifted; and (f) automaticreleasing means whereby, when one or more keys are depressed to operatethe circuit-controlling devices before mentioned, saidcircuit-controlling devices are permitted to return to theirnormalpositions in advance of the release of the key or keys L depressed, sothat another key may be do; pressed to print, while the keys firstdepressed are still held down. I

release for preventing said motor-action mechanism from acting on a pinin the pin-carrier aforesaid, While said carrier is being positioned; 1)releasable connections intermediate the piircarrier-contro'lling key orkeys aforesaid. and said motor action preventing device, ivherethroughsaid motor-action-preventing 5 device is operated when suchpin-carrier-controlling key is depressed; and (/t) means acting, when apin-carrier-controlling key has been depressed, upon the releasableconnec tions intermediate said keys and the Inotor- 7 preventing deviceaforesaid, to permit said inotor-rn'eventmg device to return to itsnormal position in advance of the releaseof said key.

13. In combination, in a type-Writing in'achine, (a) type-bars strikingto a common printingcenter; type-bar-controlling le-. vers, eachconnected with the type bar to which it corresponds; (11;) a pin-carrierand pins mounted in said pin-carrier to act upon, thetype-bar-corresponding levers aforesaid;

((Z) one or more keys'for positrning said pincarrier; (e) anelectromagnet for acting upon one of the pins in said pin carrier; (f) acircuit-controlling dpvice'for closing the circuit 5 of said magnet tobifingjit into action; (9) another circuit-controlling device normallyclos ing a break in the circuit of thdelectromagnet aforesaid, saidlast-mentionedj'circuit-eontrolling device being operated by thepin-carrier- 9 con trolling key or keys aforesaid, and acting when suchkey is depressed to open the circuit oi the electromagnet aforesaid,while the pin-carrier is being positioned; (it) releasable connectionsbetween the circuit-controlling device last mentioned and thepin-carrier-controlling key or keys aforesaid, wherethrough saidcircuitcontrolling device is operated when a pin-carrier-controlling keyis do pressed; and (i) means acting, when a pincarrier-controlling keyhas been depressed, to

the circuit-controlling device or devices operated thereby, whereby saidcircuitcontrolling device is pern'iitted to return to 12. Incombination,in a typewritingma l chine, (a) type-bars striking to acommon printing-center; (d) type-bar-controlling levers, each connectedwith the type-bar to which it eorrespondsim) a pin-carrier and pinsmounted in said pin-carrier to act upon the typebar-cori'espondinglevers aforesaid; (d) one or rnore keys for positioning said pincarrier;(e) motor mechanism for acting upon the pins in said pin-carrier, eachpin as required; (f) a m0t0raction-preyenting device,

l l l l l i l ofsaid key.

In testimony whereof I have hereunto set my hand, at ld ashil'igton, inthe District of Columbia, this 28th day of February, 1901,

in the presence of the subscribing witnesses whose names are hereuntoaiiixed.

THADDEUS CAHILL. W' i to ess es: I H. 11. BlssnLL, l). M. Sierra.

